If I'm viewing a picture in windows photo viewer and I do almost anything to the image after zooming in on an area it'll zoom straight out to the whole picture. If I click on it, go half screen with a window or move the window edge at all it pops back out, I do a lot of photomontage work and need something that will let me stay zoomed into an area but mess about with the window size, is there any way to achieve this?